Law enforcement officials have identified the missing swimmer near the Sellwood Bridge as Mario Antonio Martinez Villalta, 18, of Portland.

Villalta apparently drowned Friday evening while he was swimming with friends near Sellwood Park.

Portland firefighters and the Multnomah County Sheriff's Office River Patrol were called to the scene about 5:30 p.m. Friday, after Martinez Villalta’s friends noticed he was “having trouble swimming back to shore.” They tried to help him, “but were unable to save him,” according to a release from the sheriff’s office.

Early law enforcement reports that Martinez Villalta and a companion had jumped from the bridge were inaccurate. It now appears that he and another swimmer were swimming near a construction barge when Martinez Villalta began to struggle. The barge is in the water as part of the project to build a new Sellwood Bridge just south of the existing bridge.

Although Martinez Villalta appears to have drowned, police have not confirmed the drowning. It would be the 22nd drowning death in Oregon or Southwest Washington since Memorial day.